How to decipher error codes in Apple Hardware Test or Apple Diagnostics Your email has been sent Apple's Diagnostics utility is great at testing for hardware trouble ...

Discover the built-in hardware tests that can extend the life of your laptop and save you from expensive repairs.

Laptops quietly monitor their own health, but most people never tap into the tools that can warn of trouble long before a crash or data loss. Built-in hardware diagnostics sit below the operating ...